Sorry missed your last question, the bypass is very simple on the output from the pump there is a "T" one side goes to feed the vertical and the other side of the "T" returns to the res and has a valve fitted. When I open the valve some of the output from the pump circulates into the res this helps control the flow into the vertical and also helps with oxygenation.
Heath
In case you haven't noticed if you are perusing this thread, Heath probably is done with this journal. It is a couple years old. This is actually my first post, but I have long been following some of these journals for ideas. I just don't like posting things at such forums so much. Anyways just because I wanted to help out people, and hopefully Heath doesn't mind, I compiled a PDF grow journal containing all of the pertinent information from this thread mostly.
Click here to access the journal in a PDF format without all of the filler in-between:
https://docs.google.com/viewer?a=v&...ZjJmNC00MDk2LTgyYTYtOGM1N2JlODlhYzU0&hl=en_US
kana, yes of course
how would you go about germinating that many lol?